Ichigo needs to learn new abilities.
Ichigo's friends need to level up.
Captains/Viazards need to use their Bankai's already.
Aizen needs contact lenses since he threw away his specs.
Hopefully there is more to the story aside from Aizen and his betrayal.
Fights need to be more intense/faster paced/less explosive/more tactical/less about brute strength.
If this happened, I'd be happier to continue Bleach. Although I know I'll still read it anyway since I already read 372 chapters...